ABSTRACT
SEM observations indicated the presence of a few latex particle on areas treated with the R1, E1 and E3 pads, lots of residues where encountered on the surfaces treated with F1 and F3 pads. EDS analysis evidenced the presence of calcium, potassium and traces of sodium and chlorine on the surfaces treated with the E1 and E3 pads, when calcium, sodium, chlorine, potassium, and traces of nitrogen were encountered on the surfaces treated with the R1, F1 and F3 pads. On the surface treated with the F3 pad, EDS maps were realized. They revealed a clear sodium pollution, associated with calcium and sulfur dissolution on the cleaned surface. Finally, the observation of the E1 and E3 cores confirmed the presence of crystals at the interface dirty/cleaned. These crystals are potassium and calcium-based.
